**5. Conclusions**

In this research, we have explored the behavior of a CMC-water based Casson nanofluid from a solid sphere produced by mixed convection under a MHD influence. The following meaningful observations are worth mentioning:


3. The skin friction, velocity, and Nusselt number are decreasing functions of the magnetic field intensity, whereas temperature is an increasing function of it.

Regardless of the values of examined parameters, the values of temperature for Cu–CMC-water were the highest and had the lowest velocity.

**Author Contributions:** F.A.A.: Formal analysis, Investigation, and Methodology; F.A.A. and H.T.A.: Software; R.I., H.T.A. and A.M.R.: Supervision; H.T.A., A.M.R. and R.I.: Validation; H.T.A., A.M.R. and R.I.: Writing—review & editing. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by University Malaysia Terengganu (UMT) through gran<sup>t</sup> vote number 55193/4.

**Conflicts of Interest:** The authors declare no conflict of interest.
